diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-10-15 12:57:42 +0900 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-10-15 12:57:42 +0900 |
| commit | 2570a3719cd748899d9e9e8407eb0d9027df2a94 (patch) | |
| tree | 2eb2819e880060486d36665113e8da5c460383fc /include/linux/genalloc.h | |
| parent | 6e87badd3f38e1a095d6e1b13828246c3e8486b5 (diff) | |
| parent | 8a2ceac6617a67d8a1ee4bd255743d577bde311a (diff) | |
Merge tag 'regmap/range' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap into asoc-wm2200
regmap: Range API changes
A bunch of updates to the regmap range support, the most important ones
being to rename "n_ranges" to "num_ranges" for consistency and to allow
block writes to cross page boundaries, making things more transparent.
Diffstat (limited to 'include/linux/genalloc.h')
| -rw-r--r-- | include/linux/genalloc.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/linux/genalloc.h b/include/linux/genalloc.h index 5e98eeb2af3b..dd7c569aacad 100644 --- a/include/linux/genalloc.h +++ b/include/linux/genalloc.h @@ -29,6 +29,20 @@ #ifndef __GENALLOC_H__ #define __GENALLOC_H__ +/** + * Allocation callback function type definition + * @map: Pointer to bitmap + * @size: The bitmap size in bits + * @start: The bitnumber to start searching at + * @nr: The number of zeroed bits we're looking for + * @data: optional additional data used by @genpool_algo_t + */ +typedef unsigned long (*genpool_algo_t)(unsigned long *map, + unsigned long size, + unsigned long start, + unsigned int nr, + void *data); + /* * General purpose special memory pool descriptor. */ @@ -36,6 +50,9 @@ struct gen_pool { spinlock_t lock; struct list_head chunks; /* list of chunks in this pool */ int min_alloc_order; /* minimum allocation order */ + + genpool_algo_t algo; /* allocation function */ + void *data; }; /* @@ -78,4 +95,14 @@ extern void gen_pool_for_each_chunk(struct gen_pool *, void (*)(struct gen_pool *, struct gen_pool_chunk *, void *), void *); extern size_t gen_pool_avail(struct gen_pool *); extern size_t gen_pool_size(struct gen_pool *); + +extern void gen_pool_set_algo(struct gen_pool *pool, genpool_algo_t algo, + void *data); + +extern unsigned long gen_pool_first_fit(unsigned long *map, unsigned long size, + unsigned long start, unsigned int nr, void *data); + +extern unsigned long gen_pool_best_fit(unsigned long *map, unsigned long size, + unsigned long start, unsigned int nr, void *data); + #endif /* __GENALLOC_H__ */ |